Reducing the Complexity of Nonlinearity Pre-compensation Using Symmetric EDC and Pulse Shaping

By combining symmetric electronic dispersion compensation and root-raised-cosine pulse shaping with a roll-off factor of 0.1, the complexity of perturbation-based nonlinear pre-compensation for 128 Gbit/s DP 16-QAM is reduced by a factor up to 6.8 without a degradation in performance.